JPS60241641A - Flat-type cell - Google Patents
Flat-type cellInfo
- Publication number
- JPS60241641A JPS60241641A JP9680584A JP9680584A JPS60241641A JP S60241641 A JPS60241641 A JP S60241641A JP 9680584 A JP9680584 A JP 9680584A JP 9680584 A JP9680584 A JP 9680584A JP S60241641 A JPS60241641 A JP S60241641A
- Authority
- JP
- Japan
- Prior art keywords
- sealing plate
- positive electrode
- ring
- shape
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/04—Cells with aqueous electrolyte
- H01M6/06—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid
- H01M6/12—Dry cells, i.e. cells wherein the electrolyte is rendered non-fluid with flat electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ボタン型アルカリ電池、コイン型有機電解質
電池等、いわゆる扁平形電池の改良に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to improvements in so-called flat batteries such as button-type alkaline batteries and coin-type organic electrolyte batteries.
従来例の構成とその問題点
扁平形電池、特に薄形の扁平形電池においては薄形にす
るため、各部品の厚みを必然的に薄くする必要にせまら
れ、封口強度と、内部活物質充填体、積の増加について
、種々の方法が検討されてきた。たとえば
(1)周縁に折り返しU字状部を有する封口板より、水
平鍔部を有する封口板への切替えによる薄形化、
(2)折り返し部を有しない、略垂直状の封口板の使用
による内部充填体積の増加がある。The structure of conventional examples and their problems In flat batteries, especially thin flat batteries, in order to make them thinner, it is necessary to reduce the thickness of each component, and the sealing strength and internal active material filling are Various methods have been studied for increasing the volume. For example, (1) thinning the sealing plate by switching from a sealing plate with a folded U-shaped part on the periphery to a sealing plate with a horizontal flange; (2) using a substantially vertical sealing plate without a folded part; There is an increase in internal filling volume.
上記(1)の方法は、水平鍔部を有する封目板を使用す
ることにより、電池の薄形化と、封口部の強度はある程
度満足されるが、第1図に示す様に封口部の占める体積
が大きく、活物質充填量がそれだけ少なくなり、電池容
量の向上には不充分な構造である。In method (1) above, by using a sealing plate with a horizontal flange, the battery can be made thinner and the strength of the sealing part can be satisfied to some extent, but as shown in Figure 1, the sealing part is The structure occupies a large volume and the amount of active material filled is accordingly small, which is insufficient for improving battery capacity.
また上記(2)の方法は、第2図に示す様に封口板を略
垂直状にして用いるため、電池容量の向上にはある程度
の満足はゆくが、封口部の強度に問題を有し、特に封口
板開口先端部のガスケットとの密着度が不十分であると
、封口板先端部において、封口板の基材であるステンレ
ス鋼と電解液が反応して水素ガスを発生し、漏液や電池
フクレ、ひどい場合には、電池破裂等の不良を発生し、
これら(1)〜(2)の方法は、いずれも封口強度と電
池容量に一長一短があった。In addition, method (2) above uses a sealing plate in a substantially vertical shape as shown in FIG. In particular, if the adhesion between the opening tip of the sealing plate and the gasket is insufficient, the stainless steel that is the base material of the sealing plate will react with the electrolyte at the tip of the sealing plate, generating hydrogen gas and causing leakage. This may cause defects such as battery swelling or, in severe cases, battery rupture.
These methods (1) and (2) all have advantages and disadvantages in sealing strength and battery capacity.
発明の目的
本発明は、上記のような従来の欠点を解消し、封口強度
と電池容量が共に良好で、製造の容易な扁平形電池を提
供することを目的とする。OBJECTS OF THE INVENTION It is an object of the present invention to provide a flat battery that overcomes the above-mentioned conventional drawbacks, has good sealing strength and battery capacity, and is easy to manufacture.
発明の構成
本発明は、封口板垂直部の略中央部に内方へ環状の凸部
を、外方へ環状の凹部をそれぞれ設け、この凹部に該当
する位置の正極ケース側壁部を内方へ環状凸部状に押圧
し、封口板と正極ケース側壁部を嵌合密着させ、かつ封
口板開口先端部の延長線上の正極ケース底部を内方へ環
状凸部状に押圧してなるものである。Structure of the Invention The present invention provides an inward annular convex portion and an outward annular concave portion approximately at the center of the vertical portion of the sealing plate, and inwardly moves the side wall portion of the positive electrode case at a position corresponding to the concave portion. The sealing plate is pressed into an annular convex shape, the sealing plate and the side wall of the positive electrode case are fitted tightly together, and the bottom of the positive electrode case, which is an extension of the opening end of the sealing plate, is pressed inward in the annular convex shape. .
この構成によれば、封口部の占める割合が低いので、活
物質充填量の増加を図ることが可能である。さらに正極
ケースの側壁部と底部との二個所より嵌合密着封口して
いるために、封口強度も優れ、電池性能の向上するもの
である。According to this configuration, since the proportion occupied by the sealing portion is low, it is possible to increase the amount of active material filled. Furthermore, since the positive electrode case is tightly sealed at two points, the side wall and the bottom, the sealing strength is excellent and the battery performance is improved.
、実施例の説明 以下本発明の詳細な説明する。, Description of Examples The present invention will be explained in detail below.
第3図はボタン型酸化銀電池を示す。図において1はN
i−3US−Cuの三層クラツド材よりなる封目板で、
垂直部略中夫に内方へ環状の凸部を外方へは相対的に環
状の凹部を形成した外径5.6mmのものである。その
周縁には断面略逆り字状のガスケット2が嵌着され、ガ
スケットが組合わされた封口板の中には氷化亜鉛とCM
G 、ポリアクリル酸ソーダ等のゲル化剤、及び電解液
を含む負極合剤4が位置する。さらにナイロン不織布等
よりなる含浸材6、架橋ポリエチレン膜等よりなるセパ
レータ6で酸化銀、黒鉛等の混合物よりなる正極合剤7
を負極合剤4と隔離し、容器と正極端子を兼ねる正極ケ
ース3の、封口板垂直部の環状凸部に該当する位置の正
極ケース側壁部を内方へ環状凸部状に押圧し、封目板と
正極ケース側壁部を嵌状密着させ、かつ封口板開口先端
部の延長線上の正極ケース底部、即ちケース中心より2
.8Hの位置に内方へ環状凸部状に押圧封口した。本発
明の構成による酸化銀電池5R621を人、従来の水平
鍔部を有する第1図で示される構成の電池をB、封口板
垂直部のみを有し、折り返し部を持たない第2図で示さ
れる構成の電池をCとし、各電池を作製して緒特性を比
較したところ、次のとうりであった。FIG. 3 shows a button-type silver oxide battery. In the figure, 1 is N
A sealing plate made of i-3US-Cu three-layer clad material,
It has an outer diameter of 5.6 mm and has an annular convex portion inwardly and a relatively annular concave portion outwardly on the vertical portion. A gasket 2 having a generally inverted cross-section is fitted around its periphery, and the sealing plate to which the gasket is combined contains frozen zinc and CM.
A negative electrode mixture 4 containing G, a gelling agent such as sodium polyacrylate, and an electrolyte is located. Furthermore, an impregnating material 6 made of nylon nonwoven fabric, etc., a separator 6 made of a crosslinked polyethylene film, etc., and a positive electrode mixture 7 made of a mixture of silver oxide, graphite, etc.
is separated from the negative electrode mixture 4, and the positive electrode case side wall portion of the positive electrode case 3, which serves as both the container and the positive electrode terminal, is pressed inward to form an annular projection at a position corresponding to the annular projection on the vertical portion of the sealing plate. The batten and the side wall of the positive electrode case are brought into close contact with each other, and the bottom of the positive electrode case is located on the extension line of the opening end of the sealing plate, that is, from the center of the case.
.. The seal was sealed by pressing inward in the form of an annular convex portion at position 8H. A silver oxide battery 5R621 according to the configuration of the present invention is shown in Figure 1, B is a battery with the configuration shown in Figure 1 having a conventional horizontal flange, and Figure 2 shows a battery having only a vertical part of the sealing plate and no folded part. A battery having the configuration shown in FIG.
電 池 負極充填量 放電容量 耐漏液特性(人) 2
3,0jlF 1 6.3mAH0150(B> 1
9.011%+ 13.ts mAHo/s。Battery Negative electrode filling amount Discharge capacity Leakage resistance (person) 2
3,0jlF 1 6.3mAH0150(B>1
9.011%+13. ts mAHo/s.
(C) 22,011g15.6mAH10150但し
、上記放電容量は30にΩの定抵抗放電より計算し、耐
漏液特性は45°C90%の温湿度条件下に2000時
間保存した後の漏液状態を目視検査にて実施し6oケ中
の漏液発生個数を表わしている。(C) 22,011g 15.6mAH 10150 However, the above discharge capacity is calculated from a constant resistance discharge of 30Ω, and the leakage resistance is determined by visually observing the leakage state after storage for 2000 hours at 45°C and 90% temperature and humidity. It shows the number of leaks during 6 inspections.
また、電池Cは60ケ中6ケ電池フクレが発生しており
、他電池ム、Bは全く発生しなかった。In addition, 6 out of 60 batteries C had blistering, and the other batteries B did not have any blisters.
以上ボタン型酸化銀電池にて実施例を示したが、ボタン
型アルカリマンガン電池、有機電解質電池にても同様の
効果が得られた。Although the examples have been shown above using button-type silver oxide batteries, similar effects were obtained with button-type alkaline manganese batteries and organic electrolyte batteries.
発明の効果
以上の実施例からも明らかなように、本発明の電池は、
封口強度が優れ耐漏液特性が良く、活物質充填量が多く
出来、放電容量の優れたものである。Effects of the Invention As is clear from the above examples, the battery of the present invention has the following effects:
It has excellent sealing strength, good leakage resistance, can be filled with a large amount of active material, and has excellent discharge capacity.
第1図は従来のボタン型酸化銀電池の縦断面図、第2図
も従来のボタン型酸化銀電池の縦断面図、第3図は本発
明の実施例におけるボタン型酸化銀電池の縦断面図を示
す。
1・・ 封口板、2・・・・ガスケット、3・・・・・
・正極ケース、4・・・・・・負極合剤、6・・・・・
含浸材、6・・・・セパレータ、7・・・・・・正極合
剤。FIG. 1 is a vertical cross-sectional view of a conventional button-type silver oxide battery, FIG. 2 is a vertical cross-sectional view of a conventional button-type silver oxide battery, and FIG. 3 is a vertical cross-section of a button-type silver oxide battery according to an embodiment of the present invention. Show the diagram. 1... Sealing plate, 2... Gasket, 3...
・Positive electrode case, 4... Negative electrode mixture, 6...
Impregnation material, 6... Separator, 7... Positive electrode mixture.
Claims (1)
浸材を配し、かつ負極合剤を含んだ断面略逆U字状折り
返し部のない封口板の周縁へ断面略逆り字状ガスケット
を嵌合して積重しだ構成であって、封口板垂直部の略中
央部に内方へ環状の凸部を、外方へ環状の凹部をそれぞ
れ設け、前記凹部に相当する位置の正極ケース側壁部を
内方へ環状凸部状に押圧して封目板と正極ケース側壁部
を嵌合密着させ、かつ封口板開口先端部の延長線上の正
極ケース底部を内方へ環状凸部状に押圧したことを特徴
とする扁平形電池。Arrange the positive electrode mixture, separator, and impregnating material in order from the bottom inside the positive electrode case, and fit a gasket with an approximately inverted U-shaped cross section to the periphery of the sealing plate that contains the negative electrode mixture and has an approximately inverted U-shaped cross section. The vertical part of the sealing plate has an annular protrusion inwardly and an annular concave outward in substantially the center of the vertical part of the sealing plate, and a side wall of the positive electrode case at a position corresponding to the concave part. The sealing plate and the side wall of the positive electrode case are fitted tightly together by pressing inward in an annular convex shape, and the bottom of the positive electrode case, which is an extension of the opening end of the sealing plate, is pressed inward in an annular convex shape. A flat battery characterized by:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9680584A JPS60241641A (en) | 1984-05-15 | 1984-05-15 | Flat-type cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9680584A JPS60241641A (en) | 1984-05-15 | 1984-05-15 | Flat-type cell |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60241641A true JPS60241641A (en) | 1985-11-30 |
Family
ID=14174823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9680584A Pending JPS60241641A (en) | 1984-05-15 | 1984-05-15 | Flat-type cell |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60241641A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998013888A1 (en) * | 1996-09-27 | 1998-04-02 | Eveready Battery Company, Inc. | Galvanic cell having optimum internal volume for active components |
US5846672A (en) * | 1997-11-14 | 1998-12-08 | Eveready Battery Company, Inc. | Indented electrode cup for a miniature galvanic cell |
WO1999063605A1 (en) * | 1998-06-05 | 1999-12-09 | Eveready Battery Company, Inc. | Electrode cup for galvanic cell |
WO2002086990A2 (en) * | 2001-04-19 | 2002-10-31 | Zinc Matrix Power, Inc. A California Corporation | Battery case with edge seal |
WO2021065336A1 (en) * | 2019-09-30 | 2021-04-08 | 株式会社村田製作所 | Secondary battery |
-
1984
- 1984-05-15 JP JP9680584A patent/JPS60241641A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998013888A1 (en) * | 1996-09-27 | 1998-04-02 | Eveready Battery Company, Inc. | Galvanic cell having optimum internal volume for active components |
US5846672A (en) * | 1997-11-14 | 1998-12-08 | Eveready Battery Company, Inc. | Indented electrode cup for a miniature galvanic cell |
WO1999026301A1 (en) * | 1997-11-14 | 1999-05-27 | Eveready Battery Company, Inc. | Indented electrode cup for a galvanic cell |
WO1999063605A1 (en) * | 1998-06-05 | 1999-12-09 | Eveready Battery Company, Inc. | Electrode cup for galvanic cell |
US6183902B1 (en) | 1998-06-05 | 2001-02-06 | Eveready Battery Company, Inc. | Beaded electrode cup for a miniature galvanic cell |
WO2002086990A2 (en) * | 2001-04-19 | 2002-10-31 | Zinc Matrix Power, Inc. A California Corporation | Battery case with edge seal |
US6489054B2 (en) * | 2001-04-19 | 2002-12-03 | Zinc Matrix Power, Inc. | Battery case with edge seal |
WO2002086990A3 (en) * | 2001-04-19 | 2003-02-06 | Zinc Matrix Power Inc A Califo | Battery case with edge seal |
GB2389449A (en) * | 2001-04-19 | 2003-12-10 | Zinc Matrix Power Inc | Battery Case with edge seal |
GB2389449B (en) * | 2001-04-19 | 2004-09-08 | Zinc Matrix Power Inc | Battery Case with edge seal |
WO2021065336A1 (en) * | 2019-09-30 | 2021-04-08 | 株式会社村田製作所 | Secondary battery |
JPWO2021065336A1 (en) * | 2019-09-30 | 2021-04-08 |
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